Runway has released Praxis-1, a world action model for robotics, with open weights under the Apache 2.0 license. The company describes it as a 27-billion-parameter mixture-of-experts diffusion transformer that predicts video and robot actions together, and says it is the top-performing world action model on NVIDIA's RoboLab-120 leaderboard, with a 46.2% success rate across 1,200 episodes. Weights and code are available on GitHub and Hugging Face, including for commercial use.

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